缺点：容易饱和（输入过大或过小时梯度接近0，导致梯度消失）
If you purchase the Venusaur, Charizard, and Blastoise set before March 3, you'll get the Kanto Region Badge Collection as a free gift with purchase (while supplies last). Coming in at 312 pieces and recommended for ages 18 and up, this buildable case houses all eight Pokémon Kanto region badges from the first generation of games.
。夫子是该领域的重要参考
We call upon Google to:
The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.